THERMAL PROPERTIES OF MATTER! O.<

THERE are two different level of energy-macroscopic level energy and microscopic level energy. So what are the differences? Macroscopic level energy is about the total energy possessed by the whole object while microscopic level energy is about energy possessed by the particles inside an object.
Internal energy:particles in a matter possess energy.
-kinetic energy ( due to motion of particles)
-Potential energy ( due to attractive forcr between particles)
*Negligible potential energy is formed when there is weak intermolecular force.
temperature is the measure of the average of the kietic energy, which is called"random thermal energy" and as the KE increases, the temperature increases too. Vice versa.

MELTING> heat is absorbed to break the tight connection between the particles so that they can move about.

BOILING> heat is absorbed to break the attractive force between particles, so that they can move freely and randomly in all directions.
CONDENSATION> latent heat of vapourisation is realised, motion of particles become less vigorous to form attractive force between particles when gases change into liquid.
FREEZING/SOLIDIFICATION> Latent heat of fusion is realized so that strong anf firm connection can be formed between particles.

Differences between evaporation and boiling;
BOILING> only occurs at boiling point and it requires all the particles to take part. through out the whole proccess, the temperature remains constant.

EVAPORATION> could occur at any temperature below boilig point and only particles at the surface of the liquid are involved. it's a slow process and temperature enetually cools down.

factors:* the higher the temperature, the higher the rate of evaporation.
* the greater hte surface of liquid, the higher the rate of evaporation.
* the lower the humidity of surrounding, the higher the rate of evaporation.
*the lower the atmospheric pressure, the higher the rate of evaporation.


heys everyone goodnight! (: sweet dreams.